Mechanism for converting motion.



, -4 PA'IEIITBD 0016, 1903.. G. L., R. A.,G. B. & II. B. GRIFFIN. MBGHANISM IOR ooN'I/ERIING MOTION.

l PPLIGAIION Hmm Nov. 1o. 1902.

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Strom/mq" No. 740,423. PATBNTED 0m26.190s. G. L., R. A., c. B. @E H. EGRIPFIN. YlumenANISM PoR CONVERT-ING MOTION.

APPLIUATIONFILED Nov. 10. 119.02.

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. oftheinvention.

" /combination 'with a reciprocatory driving engage the adjacent stretch of the cable and move the same, while the other will ride freely over said cable, because of its yielding tension. On the return movement the reverse will take place, and thus the cable will be continuously moved in one direction and will impart a similar movement to the driven shaft. Whenever it is found desirable or necessary to reverse the rotation of said shaft, it is only necessary to throw the controllinglever to an opposite position. This will compress the opposite springs and release the tension of those now in action, thereby simultaneously reversing the pawls and bringing the opposite dogs into coacting relation with the cable. It will be apparent that there is no dead-center to this mechanism and that the power imparted to the driven shaft remains constant throughout the full stroke of the piston. At the same time the structure is extremely simple, as is also the means for reversing the direction of motion of the driven shaft.

From the foregoing it is thought that the construct-ion, operation, and many advantages of the hereindescribed invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion, and minor details ot construction may be resorted to without departing from the spirit or sacrificing any of the advantages The term cable as used in the specification and claims is intended to describe any tlexible endless connection and can be either in the form of a chain, a wire-rope, or a belt passing around pulleys.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. In mechanism of the class described, the combination with a reciprocatory driving member, of a driven member, including a stretch of cable located longitudinally of the direction of movement of the reciprocatory member, and separate cable-engaging devices carried by the reciprocatory member, either of said devices being movable into direct engagement with the same stretch of cable to move the same in opposite directions.

2. In mechanism of the class described, the

" member,` of a driven member, including a stretch of cable located longitudinally of the direction of' movement of the reciprocatory member, and oppositely-extending dogs carried by the reciprocatorymember, either of saidfdogs.beingmovable into direct engagement with the same stretch 'of cable to move said stretch in opposite directions and thereby reverse the direction of movement of the driven member.

3. In mechanism of the class described, the combination with a reciprocatory driving member, of a driven member including a stretch of cable located longitudinally ofthe reciprocatory. member, and a pawl pivoted to the reciprocatory member and carrying oppositely-projecting dogs alternately movable into engagement with the same stretch of cable.

4. In mechanism of the class described, the combination With a reciprocatory driving member, of a driven member including a stretch of chain having an oppositely-arranged seriesof shoulders, and a pawl pivot ed to the reciprocatory member and carrying oppositely-projecting dogs respectively and alternately movable into engagement with the series of shoulders.

5. In mechanism ofthe class described, the combination with a reciprocatory driving member, of a driven member including a cable having shoulders on its opposite side faces, and a dog pivoted to the reciprocatory member and having its free end bifurcated, said end embracing the cable and detachably engaging with the shoulders thereof.

6. In mechanism of the class described, the combination with a reciprocatory driving member, of 'a driven member including a chain-cable having oppositely-disposcd shoulders on its opposite side faces, and a pawl pivoted intermediate its ends to the reciprocatory member and having oppositely-projecting dogs, the free ends of the dogs being bifurcated and arranged to embrace the cable, said ends being alternately movable into engagement with the shoulders of said cable.

7. In mechanism of the class described, the combination with a reciprocatory driving member, of a drivenmember including a stretch of cable, oppositely-projecting dogs carried by the driving member and alternately movable into and out of direct engagement with the same stretch of cable to move the latter in opposite directions, and means for moving said dogs into and out of engagement with said stretch.

8. In mechanism of the class described, the combination with a reciprocatoryY driving member, of a driven member including a stretch of cable, oppositely-projecting dogs carried by the driving member and alternately movable into and out of direct engagement with the same stretch of cable to move .the latter in opposite directions, and common `engaging the pawl for swinging the' same.

10. Iu mechanism of theclassvdescribedhe combifitation with a reciprocatoryidriving member, of a driven memberk including a cable, a pawl pivoted to the drivenmember and carrying'oppositely-projecting dogs that IOO IIO

are alternately movable into and out of engagement with the cable, springs acting in opposite directions upon the pawl, and means for varying the tension of the springs to swing the pawl upon its pivot.

11. In mechanism of the class described,the combination with a reciprocatory driving member, of a driven member including a cable, a pawl pivoted to the driven member and carrying oppositely-projecting dogs that are alternately movable into and out of engagement with the cable, springs acting in opposite directions upon the pawl, and a tensi0n-bar slidably mounted upon the driving member and having portions bearing against both springs. l

12. In mechanism of the class described,the combination with a reciprocatory driving member, of a driven member including a stretch of cable, a pawl pivoted to the driv- -ing member and carrying oppositely-projecting dogs that are alternately movable into and out of engagement with Vthe cable to move the latter in opposite directions, a stem conf driving member and having opposite portions bearing against both springs.

13. In mechanism of the class dcscribed,the combination with a reciprocatory driving member, of a driven member including a stretch of cable, a pawl pivoted to the driving member and carrying oppositely-projecting dogs that are alternately movable into and out of engagement with the cable to move the latter in opposite directions, a stem connected to the pawl and having a buier-block, springs arranged on the stem l on opposite sides of and bearing against the buffer-block, a tension-bar slidably mounted upon the driving member and having opposite portions bearing against both springs, and a lever piv- Oted upon the reciprocatory member and connected to the tension-bar.

' 14e. In mechanism ofthe class described, the combination with a reciprocatory drivingframe,comprising spaced side bars, of a driven member including an endless cable having oppositely-moving stretches respectively 'located contiguous to the said bars, oppositelyarranged 'dogs carried by each bar and alternately movable into engagement with the contiguous stretch of the cable, and means for simultaneously moving all the dogs.

15. In mechanism of the class described, the combination with a reciprocatory drivingframe,comprising spaced side bars, of a driven member including an endless cable having cppositely-moving stretches respectively located contiguous to the said bars, and a pawl pivoted upon each bar and having oppositelydisposed dogs alternately movable into and out of engagement with the cable upon the swinging movement of the pawl.

16. Inmechanism ofthe class described, the combination with a reciprocatory drivingframe,comprising spaced side bars, of a driven A member including an endless cable having oppositely-moving stretches respectively 1ocated contiguous to the said bars, a pawl v out of engagement with 'the cable upon the swinging movement of the pawl, and lmeans having a yielding connection with each pawl for swinging the same.

18. Inmechanismoftheclassdescribed,the combination with a reciprocatory drivingframe,com prising spaced side bars, of a driven member including an endless cable having oppositely-moving stretches respectively 1ocated contiguous to the said bars, a pawl pivotedupon each bar and having oppositelydisposed dogs alternately movable'into and out of engagement with the cable upon the swinging of the paWl, and a controllinglever pivoted intermediate its ends upon the frame and having a yielding connection with each pawl. v

19. In mechanism of the class described, the combination with a reciprocatory driving member, of a revoluble member including a stretch of cable arranged contiguous to the reciprocatory member, 'and oppositely-arranged connections carried by one member and alternately movable into engagement with the other member, whereby said stretch of cable may be moved and the revoluble GEORGE L. GRIFFIN. ROBERT ALONZO GRIFFIN. CHELSEA BEACH GRIFFIN. HERBERT ELVIA GRIFFIN.

Witnesses:

O. L. COCHRAN, JAMns CHARLTON.

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